If you want to visit Uranus, you need to start planning early.
Designing and building a craft to cross the billion-plus miles might take a decade, and the cruise to the solar system's third-largest planet could require an additional 15 years.
Undaunted, the National Academies of Sciences, Engineering and Medicine recommended last month that the U.S. should launch a mission to Uranus for the first time since 1986.
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